Discovery certificate for object 2020ptd
TNS Astronomical Transient Report No. 77946 [ 2020TNSTR2204....1P ]

Date Received (UTC): 2020-07-20 01:03:34
Sender: Dr. Ismael Perez-Fournon
Reporting Group: SGLF     Discovery Data Source: ZTF

I. Perez-Fournon, C. Jimenez Angel, F. Poidevin (IAC & ULL), R. Shirley (Univ. of Southampton), R. Marques-Chaves (CAB), S. Geier (GRANTECAN & IAC), Y. Shu (IoA), S. Rodney, J. Roberts-Pierel (Univ. of South Carolina), A. Bolton (NSF's NOIRLab), S. Chakrabarti, P. Craig, and B. Alamiri (RIT) report/s the discovery of a new astronomical transient.

IAU Designation: AT 2020ptd
Discoverer internal name: ZTF20ablkith
Coordinates (J2000): RA = 21:48:43.416 (327.1809) DEC = -07:43:45.41 (-7.729281)
Discovery date: 2020-07-13 08:33:28.000 (JD=2459043.8565741)

Potential host galaxy: SDSS J214843.42-074345.4
Host redshift: 0.131388

Remarks: Data were provided by the Zwicky Transient Facility ( and processed through the Lasair (, ALeRCE (, ANTARES (, and MARS ( brokers.


Discovery (first detection):
Discovery date: 2020-07-13 08:33:28.000
Flux: 20.202 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2020-07-10 09:04:13
Limiting flux: 19.847 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Details of the new object can be viewed here: